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Growth Rate Dispersion at the Single‐Crystal Level

27-Apr-2015 | Emilie Bobo, Samuel Petit, Gérard Coquerel, Chemical Engineering & Technology, 2015

Abstract Evidence of growth rate dispersion for symmetry‐related opposite faces of centrosymmetric single crystals of ammonium perchlorate is provided. Crystallization experiments conducted by evaporation of a stagnant aqueous solution at room temperature show that some faces have high and ...


Planar CH3NH3PbI3 Perovskite Solar Cells with Constant 17.2% Average Power Conversion Efficiency Irrespective of the Scan Rate

27-Apr-2015 | Jin Hyuck Heo, Dae Ho Song, Hye Ji Han, Seong Yeon Kim, Jun Ho Kim, Dasom Kim, Hee Won Shin, Tae Kyu Ahn, Christoph ..., Advanced Materials, 2015

Planar CH3NH3PbI3 perovskite solar cells with constant 17.2% average power conversion efficiency irrespective of the scan rate are described. These properties are attributed to the formation of pure CH3NH3PbI3 thin film by introduction of HI solution. Thereby charge injection/separation ...


Synthesis and Reactivity of Thioether-Dithiolate-Bridged Multi-iron Complexes

23-Apr-2015 | Ying Li; Yahui Zhang; Dawei Yang; Yang Li; Puhua Sun; Baomin Wang; Jingping Qu, Organometallics, 2015

The novel thioether-dithiolate-bridged diiron complex [Cp*Fe(μ-1κ3SSS′:2κ2SS-tpdt)FeCp*] (1, Cp* = η5-C5Me5; tpdt = S(CH2CH2S−)2) has been prepared by the reaction of [Cp*FeCl]2 with Li2(tpdt) in THF. Given the thermodynamic instability of 1, a one-electron oxidation was performed with Fc·PF6 (Fc ...


Self-assembling corroles

23-Apr-2015 | Rafał Orłowski; Olena Vakuliuk; Maria Pia Gullo; Oksana Danylyuk; Barbara Ventura; Beata Koszarna; Anna Tarnowska; N ..., Chemical Communication, 2015

trans-A2B-corroles bearing –OCH2CONHR groups at the ortho position of the meso-phenyl substituent undergo self-organization both in the solid state as well as in solution. The lack of additional donor atoms induces sheet formation, but if the pyridine unit is present in the structure, more ...


Singlet oxygen generation from Li+@C60 nano-aggregates dispersed by laser irradiation in aqueous solution

22-Apr-2015 | Kei Ohkubo; Naoki Kohno; Yusuke Yamada; Shunichi Fukuzumi, Chemical Communication, 2015

Laser pulse irradiation of a deaerated aqueous solution containing the solid state lithium ion-encapsulated fullerene resulted in the formation of highly dispersed nano-aggregates (Li+@C60)n. Photoirradiation of an O2-saturated D2O solution containing (Li+@C60)n gave singlet oxygen with 55% ...


Oriented polyvinyl alcohol films using short cellulose nanofibrils as a reinforcement

21-Apr-2015 | Jun Peng, Thomas Ellingham, Ronald Sabo, Craig M. Clemons, Lih‐Sheng Turng, Journal of Applied Polymer Science, 2015

ABSTRACT Short cellulose nanofibrils (SCNF) were investigated as a new kind of reinforcement for polyvinyl alcohol (PVA) films. SCNF were mechanically isolated from hardwood pulp after enzymatic pretreatment. Various concentrations of SCNF were added to an aqueous PVA solution, which were cast ...


Enhanced Colloidal Stability of CeO2 Nanoparticles by Ferrous Ions: Adsorption, Redox Reaction, and Surface Precipitation

20-Apr-2015 | Xuyang Liu; Jessica R. Ray; Chelsea W. Neil; Qingyun Li; Young-Shin Jun, Environmental Science & Technology, 2015

Due to the toxicity of cerium oxide (CeO2) nanoparticles (NPs), a better understanding of the redox reaction-induced surface property changes of CeO2 NPs and their transport in natural and engineered aqueous systems is needed. This study investigates the impact of redox reactions with ferrous ...


Preorganization of the catalytic Zn2+-binding site in the HNH nuclease motif – a solution study

19-Apr-2015 | Author(s): Eszter Németh , Milan Kožíšek , Gabriella K. Schilli , Béla Gyurcsik, Journal of Inorganic Biochemistry, 2015

Publication date: Available online 9 April 2015 Source:Journal of Inorganic Biochemistry Author(s): Eszter Németh , Milan Kožíšek , Gabriella K. Schilli , Béla Gyurcsik The structure of the active site in a metalloenzyme can be a key determinant of its metal ion binding affinity and ...


Sustainable Hydrogen Production by Ethanol Steam Reforming using a Partially Reduced Copper–Nickel Oxide Catalyst

16-Apr-2015 | Li‐Chung Chen, Hongkui Cheng, Chih‐Wei Chiang, Shawn D. Lin, ChemSusChem, 2015

Abstract Hydrogen production through the use of renewable raw materials and renewable energy is crucial for advancing its applications as an energy carrier. In this study, we fabricated a solid oxide solution of Cu and Ni within a confined pore space, followed by a partial reduction, to ...


From single‐chain folding to polymer nanoparticles via intramolecular quadruple hydrogen‐bonding interaction

15-Apr-2015 | Fei Wang, Hongting Pu, Ming Jin, Haiyan Pan, Zhihong Chang, Decheng Wan, Jiang Du, Journal of Polymer Science Part A: Polymer Chemistry, 2015

ABSTRACT Single‐chain folding via intramolecular noncovalent interaction is regarded as a facile mimicry of biomacromolecules. Single‐chain folding and intramolecular crosslinking is also an effective method to prepare polymer nanoparticles. In this study, poly(methyl ...


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